Perhaps you should try some spelling variations:
"instituto neurologico nacional" » "instituto tecnologico nacional", "instituto pedagogico nacional", "instituto geologico nacional", "instituto tecnologico nacionales", "instituto astronomico nacional"
"instituto colegio nacional" » "instituto copesal nacional", "instituto clinico nacional", "instituto como nacional"
"instituto oncologico nacional" » "instituto ecologico nacional", "instituto oncologia nacional", "instituto deontologico nacional"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("instituto colegio nacional") OR ("antiguo colegio nacional"))) or ((("instituto neurologico nacional") or ("instituto oncologico nacional"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("instituto colegio nacional") OR ("antiguo colegio nacional"))) OR ((("instituto neurologico nacional") OR ("instituto oncologico nacional")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"instituto colegio nacional\") OR (\"antiguo colegio nacional\"))) or (((\"instituto neurologico nacional\") or (\"instituto oncologico nacional\"))))".
• Removing quotes may allow a broader search: (((( instituto colegio nacional ) OR ( antiguo colegio nacional ))) or ((( instituto neurologico nacional ) or ( instituto oncologico nacional )))).
• Adding a wildcard symbol may retrieve word variants: (((("instituto colegio nacional") OR ("antiguo colegio nacional"))) or ((("instituto neurologico nacional") or ("instituto oncologico nacional"))))*.